Colin Barnett has distanced himself from a key slogan used repetitively on Liberal Party campaign material at the last election that promises were "fully funded and fully costed".
In his first direct remarks on the slogan since the election, Mr Barnett suggested on ABC Radio yesterday that it was not one that he endorsed.
"Well, there was an assumption and I don't think you found me saying that too often," he said.
The words "fully funded, fully costed" appeared within a red seal stamped repeatedly on Liberal campaign brochures during the campaign, often accompanying pictures of Mr Barnett and his signature.
A widely distributed Liberal brochure of "Our Plans" read: "Inside you will find our fully funded and fully costed plans to secure WA's future."
It was signed Colin Barnett, Premier of Western Australia.
It was later revealed the election platform assumed $3 billion of Commonwealth money which never eventuated, leading to the deferral of major projects in December's midyear review.
Mr Barnett said the Government had delivered 42 of 58 promises made during the campaign, citing a Government appraisal of its election platform delivery in response to questions by _The West Australian _this month.
"Maybe we did overpromise a little bit but we are sticking to our commitments," he said. "It might mean that some of them take a little longer to be delivered."
Shadow treasurer Ben Wyatt said among the 16 promises Mr Barnett admitted had not been delivered were the $4 billion "flagship commitments" of MAX light rail and airport rail line.
Both were supposed to be operational by 2018 but a decision on whether or not to build MAX has been deferred until after the 2017 election and completion of the airport line has slipped to 2020.
Mr Wyatt said Mr Barnett's claim that he did not advance the "fully funded - fully costed" slogan showed "his descent into complete delusion is complete".